Finding the Fourth Proportional to 21,435.89, 29,589.29 and 17,450.09

Step by Step Solution

1. Step 1: Write the proportion equation
   21,435.89 : 29,589.29 = 17,450.09 : x
2. Step 2: Convert to fraction form
   21,435.89/29,589.29 = 17,450.09/x
3. Step 3: Cross multiply
   21,435.89x = 29,589.29 × 17,450.09
4. Step 4: Simplify right side
   21,435.89x = 516,335,773.54
5. Step 5: Solve for x
   x = 516,335,773.54/21,435.89
6. Step 6: Final answer
   x = 24,087.44